Georges haaritagell



B. HAARNAGELL.

BALANCE DEVICE FOR MOT-0R CAR DOOR SASH. APPLIBAHUN FILEU' m4. a. 1944- 1 ,305, 356 Patented June 3, 1919.

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INVENT [1? wumMm a c GEORGES HAARNAGELL, 0F NEUILLY-SUR-SEINE, FRANCE.

BALANCE DEVICE FOR MOTOR-CAR-DOOR SASH.

Specification of Letters Patent.

Patented June 3, 1919.

Application filed January 8, 1914. Serial No. 811,026.

To all whom it may concern:

Be it known that I, GEORGES HAARNAGELL, manufacturer, a citizen of the French Republic, residing at Neuilly -sur- Seine, France, 3 Place Parmentier, have invented certain new and useful Improvements for Balance Devices for Motor-Car-Door Sash.

This invention relates to windows, and is intended particularly for use on automobiles, cars and other vehicles.

The objects for which it is invented are first; to maintain the sash in any desired location within the range of its movements and second to prevent breakage of the glass by accidental dropping of the sash, the invention securing a balancing of the sash in any desired position.

The accompanying drawing illustrates the invention, in which the figure shows an inside view of a door or window equipped with my invention, and with the sash raised.

In the drawing the reference character 1, designates the frame of the door or window and having grooves 2, in which the sash 3, has vertical movement. In the lower part of the frame 1 is located the compensating or balancing device, consisting of a primary lever 8 and a secondary lever 9, interconnected at 10.

At its upper end 11 the primary lever 8 is connected by means of a primary spring 12, with the secondary lever 9, and at its lower end it is hinged to a wing 13, fixed to the door frame. At its point 14', this primary lever 8 is connected by means of a secondary spring 15, to another wing 16 fixed to the door frame. The secondary lever 9 is simply connected to a Wing 17, fixed to the sash 3.

In my counterbalancing or compensating structure for a window frame having a sash slidable therein I employ a toggle joint arranged to overcome the downward action of gravity on the sash and to support the latter under uniform tension of the sprin whether the sash is in its high or low position and comprising the primary lever B and the secondary lever 9 ivoted together, the outer and upper end of the u per lever 9 being hinged to the bottom of the sash and the outer and lower extremity of the lower lever 8 being hinged to the frame. I also employ a sprin 12 extending in an outward and preferz ly right hand direction from the lower lever 8 to the lever 9 above the first joint, and another spring 15 extending in another and preferably left hand and upwardly direction from the said lever to the frame.

By this arrangement of parts the springs are so positioned that by the movement of the two lovers in lowering the sash the springs in one part of the said movement are under variable tension and thereafter the tension of one spring remains substantially uniform while that of the other spring is gradually increased according to the extent to which the sash is lowered.

Having now described the invention, what I claim and desire to secure, is-

1. In a window for motor cars and the like, the combination. with a frame, of a sash movable vertically of the frame, and a balance for the sash, said balance comprising a primary lever pivotally supported in vertically inclined position at one side of the frame, a secondary lever pivotally connecting the lower edge of said sash to an intermediate portion of said primary lever, a coiled spring connected at one end to the free end of said primary lever and at its other end to the secondary lever adjacent the latters connection with said sash, and a second coiled spring connected at one end to the primary lever at a point approximately equidistant from the adjacent end thereof as is the pivot connection of the secondary lever from the opposite end there of, and, at its other end, to the frame at a point in line with the transverse center of the secondary lever, when the latter is in its raised position.

2. A window frame, a sash slidable therein, a toggle joint structure to overcome the downward action of gravity on the sash and to support the latter under tension, comprising two levers pivoted together, the outer end of the upper lever being hinged to the bottom of the sash, and the outer extremity of the lower lever being hinged to the frame, a, spring extending in a sidewise dirortinn between the u we!" portions of said levers, and another spring extending downward from the frame to the outer portion el the lower lever, whereby the depression of the sash at first distends one of the springs, and the further depression of the sash (listends the other spring, the length of the iii-stdistended spring meanwhile remain ing prmztieelly the same.

GEORGES IIAARNAGELL.

Witnesse:

EMILE Former,

HANsoN (l. Coxn.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. C. 

